package com.xue.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.xue.reggie.common.R;
import com.xue.reggie.dto.DishDto;
import com.xue.reggie.entity.Category;
import com.xue.reggie.entity.Dish;
import com.xue.reggie.entity.DishFlavor;
import com.xue.reggie.service.CategroyService;
import com.xue.reggie.service.DIshFlavorService;
import com.xue.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

@RestController
@Slf4j
@RequestMapping("/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private DIshFlavorService dIshFlavorService;

    @Autowired
    private CategroyService categroyService;

    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save (@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    /**
     * 菜品信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){

        //构造分页构造对象
        Page<Dish> pageInfo = new Page<>(page,pageSize);
        Page<DishDto>dishDtoPage = new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();

        //添加过滤条件
        queryWrapper.like(name!=null,Dish::getName,name);

        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //执行分页查询
        dishService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");  //不拷贝records这个属性

        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) ->{
            DishDto dishDto = new DishDto();

            //因为这边只完成了对categoryname的拷贝，其他的值都是空的，所以需要完成对其他信息的拷贝
            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId(); //分类的id

            //根据id查询分类里的对象
            Category category = categroyService.getById(categoryId);
            if(category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }


            return dishDto;

        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息和对应的口味信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id){
        DishDto dishDto = dishService.getByIdWithFlavor(id);

        return R.success(dishDto);
    }

    /**
     * 修改菜品
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.updateWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    /**
     * 根据条件查询对应菜品数据
     * @param dish
     * @return
     */
//    @GetMapping("/list")
//    public R<List<Dish>> list(Dish dish){
//        //构造查询条件对象
//        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
//        queryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
//
//        //添加一个条件，查询状态为1（起售）的菜品
//        queryWrapper.eq(Dish::getStatus,1);
//
//        //添加排序条件
//        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//
//        List<Dish> list = dishService.list(queryWrapper);
//
//        return R.success(list);
//
//    }

    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish) {

        //构造查询条件
        LambdaQueryWrapper<Dish> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        //添加条件，查询状态为1的（起售状态）
        lambdaQueryWrapper.eq(Dish::getStatus, 1);
        lambdaQueryWrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
        //条件排序条件
        lambdaQueryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(lambdaQueryWrapper);

        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item, dishDto);
            Long categoryId = item.getCategoryId();
            //根据id查分类对象
            Category category = categroyService.getById(categoryId);
            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            //当前菜品id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(DishFlavor::getDishId, dishId);
            //SQL: select* from dishflavor where dish_id=?;
            List<DishFlavor> dishFlavorlist = dIshFlavorService.list(queryWrapper);
            dishDto.setFlavors(dishFlavorlist);
            return dishDto;
        }).collect(Collectors.toList());

        return R.success(dishDtoList);
    }

    @PostMapping("/status/{status}")
    public R<String> updateStatus(@PathVariable Integer status, @RequestParam List<Long> ids){
        dishService.updateWithDish(status,ids);
        return R.success("菜品状态修改成功123");

    }

}
